1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __MACH_SE_MRSHPC_H
3 #define __MACH_SE_MRSHPC_H
4
5 #include <linux/io.h>
6
7 static inline void __init mrshpc_setup_windows(void)
8 {
9 if ((__raw_readw(MRSHPC_CSR) & 0x000c) != 0)
10 return; /* Not detected */
11
12 if ((__raw_readw(MRSHPC_CSR) & 0x0080) == 0) {
13 __raw_writew(0x0674, MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
14 } else {
15 __raw_writew(0x0678, MRSHPC_CPWCR); /* Card Vcc is 5V */
16 }
17
18 /*
19 * PC-Card window open
20 * flag == COMMON/ATTRIBUTE/IO
21 */
22 /* common window open */
23 __raw_writew(0x8a84, MRSHPC_MW0CR1);
24 if((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
25 /* common mode & bus width 16bit SWAP = 1*/
26 __raw_writew(0x0b00, MRSHPC_MW0CR2);
27 else
28 /* common mode & bus width 16bit SWAP = 0*/
29 __raw_writew(0x0300, MRSHPC_MW0CR2);
30
31 /* attribute window open */
32 __raw_writew(0x8a85, MRSHPC_MW1CR1);
33 if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
34 /* attribute mode & bus width 16bit SWAP = 1*/
35 __raw_writew(0x0a00, MRSHPC_MW1CR2);
36 else
37 /* attribute mode & bus width 16bit SWAP = 0*/
38 __raw_writew(0x0200, MRSHPC_MW1CR2);
39
40 /* I/O window open */
41 __raw_writew(0x8a86, MRSHPC_IOWCR1);
42 __raw_writew(0x0008, MRSHPC_CDCR); /* I/O card mode */
43 if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
44 __raw_writew(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/
45 else
46 __raw_writew(0x0200, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0*/
47
48 __raw_writew(0x2000, MRSHPC_ICR);
49 __raw_writeb(0x00, PA_MRSHPC_MW2 + 0x206);
50 __raw_writeb(0x42, PA_MRSHPC_MW2 + 0x200);
51 }
52
53 #endif /* __MACH_SE_MRSHPC_H */
54
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